| Ub to Silver Firs (Washington) | 5,659.21 mi (9,107.62 km) |
| Ub to Silver Spring (Maryland) | 4,708.26 mi (7,577.21 km) |
| Ub to Silver Springs Shores (Florida) | 5,380.13 mi (8,658.49 km) |
| Ub to Silverdale (Washington) | 5,682.32 mi (9,144.81 km) |
| Ub to Silverton (Oregon) | 5,850.09 mi (9,414.81 km) |
| Ub to Simi Valley (California) | 6,415.26 mi (10,324.37 km) |
| Ub to Simpsonville (South Carolina) | 5,120.77 mi (8,241.08 km) |
| Ub to Sioux City (Iowa) | 5,264.76 mi (8,472.82 km) |
| Ub to Sioux Falls (South Dakota) | 5,221.80 mi (8,403.67 km) |
| Ub to Skokie (Illinois) | 4,984.06 mi (8,021.08 km) |
| Ub to Sleepy Hollow (New York) | 4,487.93 mi (7,222.62 km) |
| Ub to Slidell (Louisiana) | 5,646.79 mi (9,087.63 km) |
| Ub to Smithfield (North Carolina) | 4,921.63 mi (7,920.59 km) |
| Ub to Smithfield (Utah) | 5,774.39 mi (9,292.98 km) |
| Ub to Smithville (Missouri) | 5,363.01 mi (8,630.93 km) |
